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bezimeni [28]
3 years ago
11

3[ (5)/(-9) (6)/(-2)]-2[(0)/(-2)(2)/(-4)]

Mathematics
2 answers:
Anika [276]3 years ago
7 0
5 is the correct answer I believe
statuscvo [17]3 years ago
5 0
5 is the right answer
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Which set of expressions represents three consecutive integers?
kotykmax [81]
Consecutive integers have similar characteristics in such a way that their difference is their differences is always one. For example, 1,2,3...
the difference between the consecutive integers is 1. therefore if the first integer is n, the next one will be:
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this will give us:
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3 years ago
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1. Five times a whole number x is subtracted from 62 The result is less than 40
grandymaker [24]

Answer:

Step-by-step explanation:

1.  Symbolically, we get:  62 - 5x < 40

2.  y - 7.3 < 3.4.  Solve for y by adding 7.3 to both sides, obtaining:

     y < 10.7    This is both the 'range' and the 'solution'

3a)      4b =  9b + 45, or -5b = 45, or b = -9

3b)      5a + 10 = 4a - 4

Combining like terms results in a = -14

6 0
3 years ago
I keep getting confused I don't understand what I keep doing wrong
rosijanka [135]
\bf \begin{cases}&#10;5x+3y+z=-14\\&#10;2x-2y-z=-13\\&#10;3x+y+3z=-2&#10;\end{cases}

so.. let's us eliminate, say "z" first, so for that, let's pick the 1s and 2nd equations there  \bf \begin{array}{llll}&#10;5x+3y+z=-14\\&#10;2x-2y-z=-13\\&#10;----------\\&#10;\boxed{7x+y+0\ =-27}&#10;\end{array}

so, that's our first two-variables resultant

let's pick other two, and again, eliminate the same "z" variable, this time, let's use the 2nd and 3rd equations   \bf \begin{array}{llll}&#10;2x-2y-z=-13&\times 3\implies &6x-6y-3z=-39\\&#10;3x+y+3z=-2\implies &&3x+y+3z\ =-2\\&#10;&&----------\\&#10;&&\boxed{9x-5y+0\ =-41}&#10;\end{array}

now, we have two two-variables equations, let's use them then
and say, we'll eliminate the "y" variable from them

\bf \begin{array}{llll}&#10;7x+y=-27& \times 5\implies &35x+5y=-135\\&#10;9x-5y=-41\implies &&9x-5y=-41\\&#10;&&-------\\&#10;&&44x+0=-176&#10;\end{array}&#10;\\\\\\&#10;x=\cfrac{-176}{44}\implies \boxed{x=-4}&#10;\\\\\\&#10;\textit{now, that we know x = -4, let's plug that in }7x+y=-27&#10;\\\\\\&#10;7(-4)+y=-27\implies y=-27+28\implies \boxed{y=1}

\bf \textit{now, let's plug those two at }5x+3y+z=-14&#10;\\\\\\&#10;5(-4)+3(1)+z=-14\implies -20+3+z=-14\implies z=-14+17&#10;\\\\\\&#10;\boxed{z=3}
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3 years ago
Erwin is purchasing a $190,000 home and is making a 20% down payment
amm1812

Answer:

Step-by-step explanation:

5

3 0
4 years ago
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